EBK MACROSCALE AND MICROSCALE ORGANIC E
7th Edition
ISBN: 8220101437488
Author: Williamson
Publisher: YUZU
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Chapter 4, Problem 3Q
Interpretation Introduction
Interpretation:
The circumstances required for the use of activated carbon during recrystallization should be determined.
Concept introduction:
Recrystallization is a technique that is used to purify the impure compounds. It is based on the principle that the solubility of substances increases with the increase in temperature.
Following are some of the types of recrystallization:
- Single-solvent recrystallization
- Multi-solvent recrystallization
- Hot filtration-recrystallization
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Using the conditions of spontaneity to deduce the signs of AH and AS
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy
AS.
Note: if you have not been given enough information to decide a sign, select the "unknown" option.
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A
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C
This reaction is exothermic and proceeds
faster at temperatures above -43. °C.
(pick one)
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(pick one) v
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Ar
ion.
A student proposes the following Lewis structure for the perchlorate (CIO) io
:
:0:
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:0:
ك
Assign a formal charge to each atom in the student's Lewis structure.
atom
central O
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Chapter 4 Solutions
EBK MACROSCALE AND MICROSCALE ORGANIC E
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